10 items are filed under this topic.
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Differentiate ln[x(2x-4)^1/2] |
2014-06-28 |
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From Igwe:
If y=In[x(2x-4)^1/2],find dy/dx at x=3
Answered by Penny Nom. |
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Solve x = ln(x) |
2013-07-19 |
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From Udayan:
Sir/Madam,
How to find the solutions of the equation,
x = ln(x)
Answered by Penny Nom. |
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Solving with the Natural Log |
2008-07-28 |
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From CB:
I am trying to solve lnx +3ln2 = ln 2/x. Every way I've tried when I go to plug in the solution it doesn't come out right.
Answered by Penny Nom. |
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y = log(x) + x. Solve for x. |
2005-08-26 |
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From Alain:
I have the following equation:
y = ln(x) + x
How do I solve for x?
Answered by Penny Nom. |
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ln(hx+n) |
2005-01-07 |
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From Anibal:
if I have the eq.
y=hx+n
and I want to know ln(y), how do I process
ln(hx+n)?
Answered by Penny Nom. |
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R= 5.3lnx + x. |
2003-05-11 |
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From A student:
Reaction R to a dose x is given by: R= 5.3lnx + x. For a certain drug, R must not exceed 21. Show that a dose between 8 and 12 units satisfies this requirement & find, correct to 5 decimal places, the greates value of x which satisfies this condition?
Answered by Harley Weston. |
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Three algebra problems |
1999-12-28 |
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From Stephanie Branton:
- If P represents the product of all prime numbers less than 1000, what is the value of the unit's digit of P?
- Do any real numbers a and b exist such that: ln(a+b)=ln a + ln b? if so, what are they?
- Define a function by: f(x)=1/1-x where x is not equal to 0,1. what is f(f(f(a)))?
Answered by Harley Weston. |
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Two derivatives |
1999-11-16 |
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From Gina Renicker:
The derivative of: y=e(xlnx) and y=x2arctan(x1/2)
Answered by Harley Weston. |
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Area of a circle and an inequality |
1999-10-30 |
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From Adam Anderson:
I have two problems. The first: prove that the area of a cirlce is pi times radius squared without using calculus. The second: show that ln(x) < x - 1 for all x > 0.
Answered by Harley Weston. |
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ln(x+3)+ln(x+2)=ln(x+11) |
1999-11-24 |
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From Thibault Portevin:
"Résolvez l'équation : ln(x+3)+ln(x+2)=ln(x+11)" Je suis bloqué, pourriez-vous m'aider?
Answered by Claude Tardif. |
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